Hot water tank helical coil cleaner



FIG. 1 is a perspective view of a hot water tank helical coil cleaner showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a hot water tank helical coil cleaner, as shown and described. 